/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.instancemanager;

import java.util.logging.Logger;

import javolution.util.FastList;
import net.sf.l2j.gameserver.model.L2Effect;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.model.entity.Duel;
import net.sf.l2j.gameserver.network.serverpackets.L2GameServerPacket;

public class DuelManager
{
private static final Logger _log = Logger.getLogger(DuelManager.class.getName());

public static final DuelManager getInstance()
{
	return SingletonHolder._instance;
}

// =========================================================
// Data Field
private FastList<Duel> _duels;
private int _currentDuelId = 0x90;

// =========================================================
// Constructor
private DuelManager()
{
	_log.info("Initializing DuelManager");
	_duels = new FastList<Duel>();
}

// =========================================================
// Method - Private

private int getNextDuelId()
{
	// In case someone wants to run the server forever :)
	if (++_currentDuelId >= 2147483640)
		_currentDuelId = 1;
	return _currentDuelId;
}

// =========================================================
// Method - Public

public Duel getDuel(int duelId)
{
	for (FastList.Node<Duel> e = _duels.head(), end = _duels.tail(); (e = e.getNext()) != end;)
	{
		if (e == null || e.getValue() == null)
		{
			try
			{
				_duels.remove(e);
			}
			catch (Exception e1)
			{
				e1.printStackTrace();
			}
		}
		else if (e.getValue().getId() == duelId)
			return e.getValue();
	}
	
	return null;
}

public void addDuel(L2PcInstance playerA, L2PcInstance playerB, int partyDuel)
{
	if (playerA == null || playerB == null)
		return;
	
	// return if a player has PvPFlag
	String engagedInPvP = "The duel was canceled because a duelist engaged in PvP combat.";
	if (partyDuel == 1)
	{
		boolean playerInPvP = false;
		for (L2PcInstance temp : playerA.getParty().getPartyMembers())
		{
			if (temp.getPvpFlag() != 0)
			{
				playerInPvP = true;
				break;
			}
		}
		if (!playerInPvP)
		{
			for (L2PcInstance temp : playerB.getParty().getPartyMembers())
			{
				if (temp.getPvpFlag() != 0)
				{
					playerInPvP = true;
					break;
				}
			}
		}
		// A player has PvP flag
		if (playerInPvP)
		{
			for (L2PcInstance temp : playerA.getParty().getPartyMembers())
			{
				temp.sendMessage(engagedInPvP);
			}
			for (L2PcInstance temp : playerB.getParty().getPartyMembers())
			{
				temp.sendMessage(engagedInPvP);
			}
			return;
		}
	}
	else
	{
		if (playerA.getPvpFlag() != 0 || playerB.getPvpFlag() != 0)
		{
			playerA.sendMessage(engagedInPvP);
			playerB.sendMessage(engagedInPvP);
			return;
		}
	}
	
	Duel duel = new Duel(playerA, playerB, partyDuel, getNextDuelId());
	_duels.add(duel);
}

public void removeDuel(Duel duel)
{
	_duels.remove(duel);
}

public void doSurrender(L2PcInstance player)
{
	if (player == null || !player.isInDuel())
		return;
	Duel duel = getDuel(player.getDuelId());
	duel.doSurrender(player);
}

/**
 * Updates player states.
 * @param player - the dieing player
 */
public void onPlayerDefeat(L2PcInstance player)
{
	if (player == null || !player.isInDuel())
		return;
	Duel duel = getDuel(player.getDuelId());
	if (duel != null)
		duel.onPlayerDefeat(player);
}

/**
 * Registers a debuff which will be removed if the duel ends
 * @param player
 * @param debuff
 */
public void onBuff(L2PcInstance player, L2Effect buff)
{
	if (player == null || !player.isInDuel() || buff == null)
		return;
	Duel duel = getDuel(player.getDuelId());
	if (duel != null)
		duel.onBuff(player, buff);
}

/**
 * Removes player from duel.
 * @param player - the removed player
 */
public void onRemoveFromParty(L2PcInstance player)
{
	if (player == null || !player.isInDuel())
		return;
	Duel duel = getDuel(player.getDuelId());
	if (duel != null)
		duel.onRemoveFromParty(player);
}

/**
 * Broadcasts a packet to the team opposing the given player.
 * @param player
 * @param packet
 */
public void broadcastToOppositTeam(L2PcInstance player, L2GameServerPacket packet)
{
	if (player == null || !player.isInDuel())
		return;
	Duel duel = getDuel(player.getDuelId());
	if (duel == null)
		return;
	if (duel.getPlayerA() == null || duel.getPlayerB() == null)
		return;
	
	if (duel.getPlayerA() == player)
	{
		duel.broadcastToTeam2(packet);
	}
	else if (duel.getPlayerB() == player)
	{
		duel.broadcastToTeam1(packet);
	}
	else if (duel.isPartyDuel())
	{
		if (duel.getPlayerA().getParty() != null && duel.getPlayerA().getParty().getPartyMembers().contains(player))
		{
			duel.broadcastToTeam2(packet);
		}
		else if (duel.getPlayerB().getParty() != null && duel.getPlayerB().getParty().getPartyMembers().contains(player))
		{
			duel.broadcastToTeam1(packet);
		}
	}
}

@SuppressWarnings("synthetic-access")
private static class SingletonHolder
{
protected static final DuelManager _instance = new DuelManager();
}
}